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Finding the Fourth Proportional to 53,303.92, 79,959.72 and 15,351.64

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Solution

The fourth proportional to 53,303.92, 79,959.72 and 15,351.64 is: 23,028.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,303.92 : 79,959.72 = 15,351.64 : x
  2. Step 2: Convert to fraction form
    53,303.92/79,959.72 = 15,351.64/x
  3. Step 3: Cross multiply
    53,303.92x = 79,959.72 × 15,351.64
  4. Step 4: Simplify right side
    53,303.92x = 1,227,512,693.61
  5. Step 5: Solve for x
    x = 1,227,512,693.61/53,303.92
  6. Step 6: Final answer
    x = 23,028.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.